fix(security): 添加VITE_PAYMENT_URL环境变量配置

.qoder/skills/understand/languages/rust.md

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+# Rust Language Prompt Snippet
+
+## Key Concepts
+
+- **Ownership and Borrowing**: Each value has one owner; references borrow without taking ownership
+- **Lifetimes**: Annotations (`'a`) ensuring references remain valid for their required duration
+- **Traits and Trait Objects**: Shared behavior definitions; `dyn Trait` for dynamic dispatch
+- **Pattern Matching**: Exhaustive `match` expressions deconstructing enums, structs, and tuples
+- **Enums with Data**: Algebraic data types — each variant can carry different associated data
+- **Result/Option Error Handling**: `Result<T, E>` for fallible ops; `Option<T>` for nullable values
+- **Macros**: Declarative (`macro_rules!`) and procedural (derive, attribute, function-like) code generation
+- **Async/Await with Tokio**: Zero-cost async using `Future` trait and runtime executors
+- **Unsafe Blocks**: Opt-in blocks for raw pointer dereferencing, FFI, and bypassing borrow checker
+- **Generics with Trait Bounds**: `<T: Clone + Send>` constraining generic parameters
+- **Closures and Fn Traits**: `Fn`, `FnMut`, `FnOnce` determine how closures capture environment
+
+## Import Patterns
+
+- `use crate::module::Item` — import from current crate
+- `use std::collections::HashMap` — import from standard library
+- `use super::*` — import everything from parent module
+- `mod module_name` — declare a submodule (loads from file)
+
+## File Patterns
+
+- `mod.rs` — module barrel file (older convention) or `module_name.rs` (2018+ edition)
+- `lib.rs` — library crate root defining the public API
+- `main.rs` — binary crate entry point
+- `Cargo.toml` — project manifest with dependencies and metadata
+- `build.rs` — build script executed before compilation
+
+## Common Frameworks
+
+- **Actix-web** — Actor-based, high-performance web framework
+- **Axum** — Ergonomic web framework built on Tower and Hyper
+- **Rocket** — Type-safe web framework with declarative routing
+- **Diesel** — Safe, composable ORM and query builder
+- **Tokio** — Async runtime providing I/O, timers, and task scheduling
+
+## Example Language Notes
+
+> Takes `&self` borrow to read state without transferring ownership; returns
+> `Result<T, Error>` for explicit error propagation. The `?` operator propagates
+> errors up the call stack concisely, replacing verbose match blocks.
+>
+> The module system maps to the filesystem: `mod handlers;` loads either
+> `handlers.rs` or `handlers/mod.rs`, establishing the module tree at compile time.